Seiko Cal. 4428 - 768

This Kinetic model from 1972 features a 41mm Hardlex-Coated Steel case. Powered by the 4428 caliber with 22j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-243be5661230]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1972

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